B40 Weizhong ( HeSea Point , V40 )

Location Midpoint of the transverse crease of the popliteal fossa , belween the tendons of m . biceps femoris and m . semitendinosus

Indications Low back pain , motor impairment of the hip joint , contracture of the tendons in the popliteal fossa , Muscular atrophy , pain , numbness and motor impairment of the lower extremities , hemiplegia , abdominal pain , vomiting , diarrhea , erysipelas .

Method Puncture perpendicularly - 0 . 5 - - 1 . 0 inch , or prick the popliteal vein with three edged needle to cause bleeding

Vasculature Superficially , the femoropopliteal vein ; deeper and medially , the popliteal vein ; deepest , the popliteal artery .

Innervation The posterior femoral cutaneous nerve , the tibial nerve .